초록 ▼

There is provided a mill computer control system for automatically controlling the position of the individual drives in accordance with at least one predetermined equation so as to produce variable profile forms of the roll gap. Crown forms and tapered forms are generated by the computer in response

There is provided a mill computer control system for automatically controlling the position of the individual drives in accordance with at least one predetermined equation so as to produce variable profile forms of the roll gap. Crown forms and tapered forms are generated by the computer in response to single keystroke commands on the keyboard. The drives may be adjusted simultaneously or individually. Individual adjustments may be made which are preserved during changes in the crown form or the tapered form.

대표청구항 ▼

In a cluster mill of the type having spaced-apart, opposing upper and lower clusters, each of said clusters having work rills, intermediate rolls, and backing bearings, wherein positioning of said work rolls defines a roll gap therebetween, said upper and lower clusters having a plurality of individ

In a cluster mill of the type having spaced-apart, opposing upper and lower clusters, each of said clusters having work rills, intermediate rolls, and backing bearings, wherein positioning of said work rolls defines a roll gap therebetween, said upper and lower clusters having a plurality of individual drives, each of said drives being capable of causing positional movement independent of one another, each of said drives being used to position one of a plurality of racks, the movement of said racks tending to shape at least one of a plurality of backing shafts each of which is supported at a plurality of locations along its length by saddles, the movement of said racks also shaping the roll gap, a crown adjustment control system having computer-controlled means for causing and controlling simultaneous movement of at least two of said drives in unison in accordance with at least one predetermined equation defining the position of the racks so as to produce a profile form of the roll gap which can be varied by the movement of said plurality of racks, thus defining a plurality of variable profile forms, wherein said profile forms comprise a plurality of crown forms of varying curvatures, and comprising means for making adjustments to the positions of selected individual racks, said adjustments being preserved during any change to the profile form of the roll gap.